Service difficulty report · Fuel Control · Bolkms BK117C2

Difficulty date
February 14, 2022
Submitted
February 14, 2022
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
06720079116
Aircraft time
4,295 hours
Part
Fuel Control
Part number
0164850380
Part serial
15926
Condition
Oscillates
Stage of operation
CR
How discovered
V
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING FLIGHT ILLUMINATION OF #2 ENGINE FUEL PRESSURE CAUTION LIGHT. NOTE: MULTIPLE ENGINE TORQUE SPLITS OCCURRED DURING CRUISE, AND LANDING. MANUAL CONTROL OF VARNAR REQUIRED TO MAINTAIN NORMAL AIRCRAFT LIMITS AND SAFE OPERATIONS. T/F EVAL: STEADY CRUISE FLIGHT AT 100 KIAS, 1500FT PA, #2 ENGINE HAD OSCILLATION FOLLOWED BY #2 FUEL PRESSURE LIGHT ILLUMINATED WITH #2 ENGINE DROPPING 30% TQ AND THEN RECOVERING WITH FUEL PRESSURE LIGHT GOING OFF. REPLACED FUEL CONTROL UNIT IAW SAFRAN HELICOPTERS ENGINE MAINT MANUAL 73-21-00-900-801-B01. MOC COMPLETED OK IAW AMM 05-60-00, 6-1.